Seiko Has a Quartz Watch If and Only If Either

Multiple Choice

Seiko has a quartz watch if and only if either Movado does not offer a silver dial or Rado does not have a calendar watch; however, Tissot has luminous hands only if both Fossil is water resistant and Rado has a calendar model.

A) [S ≡ ∼(M ∨ R) ] • [T ⊃ (F • R) ]
B) [S ≡ (∼M ∨ ∼R) ] • [(F • R) ⊃ T]
C) [(∼M ∨ ∼R) ⊃ S] • [T ⊃ (F • R) ]
D) [S ≡ (∼M ∨ ∼R) ] ∨ [T ⊃ (F • R) ]
E) [S ≡ (∼M ∨ ∼R) ] • [T ⊃ (F • R) ]